410 likes | 771 Views
Cancer epidemiology an introduction. Yi Ning, ScD, MD, MPH Dept of Epidemiology and Community Health yning2@vcu.edu. Overview. Data review Risk factors and prevention Secondary prevention. Data review. Cancer.
E N D
Cancer epidemiologyan introduction Yi Ning, ScD, MD, MPH Dept of Epidemiology and Community Health yning2@vcu.edu
Overview • Data review • Risk factors and prevention • Secondary prevention
Cancer • 1st described by Hippocrates to describe radiating appendage-like projections observed in breast tumors • In Greek, cancer = crab • Def.: malignant tumor of potentially unlimited growth that expands locally by invasion and systemically by metastasis
Global NCD Death under 70 global status report on noncommunicable diseases 2010
Age-Adjusted Death Rates* for the 10 Leading Causes of Death WWMR, December 9, 2011 / 60(48);1656-1656
Cancer, non-communicable diseases and lifestyle global status report on noncommunicable diseases 2010
Causes of Death WWMR, December 9, 2011 / 60(48);1656-1656
Colon cancer paradigm Colon cancer From AACR Cancer Progress Report 2011
Actual Causes of Death in the United States McGinnis JM, Foege WH. Actual causes of death in the United States. JAMA 1993; 270(18):2207-12.
Major recommendation from World Cancer Research Fund and American Institute for Cancer Research (All?)
Obesity Trends* Among U.S. Adults BRFSS, 1985 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10. CDC Obesity Trends http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/
RESULTS: RR for 5 kg/m2 BMI RR=1.18 (1.14, 1.21) Ning Y. et al. Obesity Review, 2009
Obesity Trends* Among U.S. Adults BRFSS, 1987 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10. CDC Obesity Trends http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/
Obesity Trends* Among U.S. Adults BRFSS, 1989 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10. CDC Obesity Trends http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/
Obesity Trends* Among U.S. Adults BRFSS, 1991 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10. CDC Obesity Trends http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/
Obesity Trends* Among U.S. Adults BRFSS, 1993 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10. CDC Obesity Trends http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/
Obesity Trends* Among U.S. Adults BRFSS, 1995 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10. CDC Obesity Trends http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/
Obesity Trends* Among U.S. Adults BRFSS, 1997 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10. CDC Obesity Trends http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/
Obesity Trends* Among U.S. Adults BRFSS, 1999 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10. CDC Obesity Trends http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/
Obesity Trends* Among U.S. Adults BRFSS, 2001 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10. CDC Obesity Trends http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/
Natural History of CRC 30-40 years Normal Epithelium Hyperproliferating Epithelium Early Adenoma Intermediate Adenoma Late Adenoma Metastasis Carcinoma Screening
Secondary Prevention • Natural history of the disease • Treatment is effective • Reduce mortality
Cancer prevention • 1981 Doll and Peto compared incidence in countries or regions with the highest and lowest rates • Estimated majority of cancer due to preventable causes • ACS challenge goals (1996) to reduce mortality by 50% through 2015